(1) ERASED de KOONING DRAWING, ROBERT RAUSCHENBERG 1953.

(2) Digitally enhanced infrared scan of Robert Rauschenberg’s Erased de Kooning Drawing, 1953, showing traces of the original drawing by Willem de Kooning. Visible light scan by Ben Blackwell, 2010. Infrared scan and processing by Robin D. Myers, 2010. Courtesy of San Francisco Museum of Modern Art.